FLUE FOR FURNACE Russian patent published in 2016 - IPC F24B7/00 F23J11/00 E04H12/28 

FIELD: design of furnaces; methods of fuel combustion.

SUBSTANCE: chimney of furnace for heating of bath rooms includes a vertically oriented body, the bottom inlet part of which is connected to a source of hot gases, preferably, fuel combustion products in the furnace, while the top outlet part is connected to atmosphere. In the central part of the chimney body, its lower and upper parts are connected to each other by means of several isolated channels with a round cross section, total passage area of which is equal to or exceeds the passage area of the chimney. Said channels are installed in stepped extensions made on adjacent sections of the chimney. At least in one channel, preferably in every one, there is installed a swirler, which is a metal strip, misshaped by rotation of its ends in opposite directions.

EFFECT: higher heat release due to lowering of exhaust smoke gases' temperature.

1 cl, 3 dwg